I will posit something that guides my own thinking about this; robotaxis will never drink and drive. I'll take whatever flavor of mistake they conjure over that. I can deal with stupidity, I cannot (and don't want to) deal with malice.
"No DUI" is a big part of why even the current, flawed and markedly subhuman, self-driving cars casually beat human drivers on road safety.
A self-driving car AI pays less attention than a human driver at his best. It isn't as aware as a human driver at his best. It doesn't have the spatial reasoning, the intuitive understanding of physics and road dynamics that matches that of a human driver at his best.
Human drivers still fall behind statistically, because human drivers are rarely at their best. And the worst of human drivers? It's really, really bad.
AI is flawed, but a car autopilot doesn't get behind the wheel after 3 beers and a pill of benadryl. It doesn't get tired, doesn't get impaired, doesn't lose sleep or succumb to road rage. It always performs the same.
Until it gets a software update, that is. The road performance of an average car AI only ever goes up. I don't think that's true for human drivers, frankly.
The option that doesn't exist in America is to get the bus.
Before the pandemic I was commuting by bus and this meant an early start to the day, but not as early as what the bus driver had.
The bus had its own community, so I had my 'bus buddies' and the journey would always be quick because of the social aspect to it. The bus drivers knew the customers and their needs. What the bus drivers had that is absent in robotaxis is working class pride. Working class pride means a job well done, with certainly no drinking, looking at texts or navigating the route.
We had economy of scale, with dozens on the bus, about 80% occupancy. Getting a robotaxi every day would be too expensive for most of us on the bus, plus the traffic would be hell.
Getting the bus out the depot on a freezing cold winter morning was a challenge, with much to de-ice. Our bus drivers didn't dissapoint.
There were a couple of incidents, we had some tree hit the upper deck, taking out the upper 'windscreen'. We also had a car driver pull out on the bus, for his car to be cast aside like a toy. Again, our bus drivers stepped up and made sure everyone was okay.
Could the AI magic have prevented both incidents?
Maybe. But maybe not.
The elderly driver that pulled out on the bus should have been on the bus and not driving. As for the tree that 'pulled out on the bus', that was a highway maintenance issue.
There were other niceties about the bus, for example, thanking the driver. I am sure I always did that, and it always felt good to do so. If I was late and 'our' bus driver saw me running for the bus, he or she would wait. Another reason to be thankful.
At the time I thought I was reasonably well paid. However, our bus driver was on the same money as me, if not more. His or her salary stayed in the community, it wasn't as if Silicon Valley venture capital was leeching away what we all spent on bus fares.
One frustration of a bus is that you are stopping a lot to pick people up. Having wifi (or bus buddies or a good book) made that okay. However, it wasn't the scheduled bus stops that bothered me, it was the stops from 'traffic', as in the hordes of single occupancy cars. Inching forward is no fun at all, whether in a robotaxi or a bus. However, for the final stretch into town, we had a dedicated bus lane.
I think that a lot of human potential is wasted by people spending half their lives sat in traffic and robotaxis go some way to solve that. However, give me the bus, with a driver that has working class pride, any day.
Many people don't drink and drive either. You can drive defensively, choose your own route.
Even on two lane roads: if an idiot overtakes into oncoming traffic there is usually just enough space for three vehicles next to each other. Can a Waymo move sharply to the right so there are two cars on each side with the overtaking idiot in the middle and all just fit on the road? I had to do that maneuver at least twice.
Can a Waymo prevent a carjacking when someone places traffic cones in front of it?
Can you open the Windows and get out if the thing decides to drive into a lake?
I don't know, currently defensive driving is the better option.